FULL HOUSE TAKE 2 is a Smash Hit in Japan!

Full House Take 2, the sequel-esque Korean drama related to the Rain hit Full House, is turning out to be a huge hit in Japan. According to Amazon sales figures, the DVD set of Full House Take 2 is currently the #1 best-seller in Korean dramas, outranking Secret Garden, Love Rain and other international hits. You can see the box set that rose to the top of the charts below:
Would you buy Full House Take 2 on DVD? What do you think made this Kdrama so popular in Japan?